Barbecue grill



FIG. 1 is a perspective view of a barbecue grill showing the present design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is an exploded view of the elements of the barbecue grill; and,

FIG. 7 is another exploded view of the elements of the barbecue grill.

The broken lines shown in the drawings represent portions of the barbecue grill that form no part of the claimed design. 

CLAIM The ornamental design for a barbecue grill, as shown and described. 